Spraying apparatus.



G. REIGHERT.

SPRAYING APPARATUS.

APPLICATION FILED APR. 17, 1912.

Patented Mar. 3, 1m

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20 I d I? .34- llfilhkfi 35 /.5 III I I /6 I G. REIGHERT.

SPRAYING APPARATUS.

APPLICATION FILED APB..17, 1912.

1,089,088 Patented Mar. 3,1914.

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7 v gsjeulb Z g 6% v UNITED sTArEs PATENT OFFICE.

CARL itEIcHER'r, or NORTH YAKIMA, wasnmoron.

SPRAYING APPARATUS.

To all whom it may concern:

Be it known that I, CARL Rnlonnnr, a citizen of the United States,residing at North Yakima, in the county of Yakima and the State ofWashington, have invented new and useful Improvements in SprayingApparatus, of which the following is a specification.

This invention relates to an' automatic regulator cut oil and safetyvalve for power spray pumps.

The object of the present invention is to provide. an automatic liquidregulator for power spray pumps, which will control the spraying liquid,when the spraying apparatus is in operation and which will also maintaina constant pressure of the spraying liquid, said sprayin liquid andpressure being predetermine means being provided for regulating saidspraying liquid and pressure.

A further object of the invention is to provide meansfor cutting oh thesupply of liquid to the pump when the nozzle is cut off, allowing thepump to run free, thus reducing wear and saving fuel, the cut oil actingas a safety valve for the pump.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the com bination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings-Figure 1 is a sectional view, the valve being open. Fig.2 is a. similar view with the valve closed. Fig. 3 is a perspectiveview, diagrammatic in character, of a spraying apparatus embodying thisinvention.

In the drawings, 10 designates the body of the regulator, which formsthe cylinder 14 having the inlet 11 which connects to thesupply tank 4,and the outlet 12 which connects to the spraying devices.

The contracted portion 15 at the upper end of the cylinder 14, 'formsthe seat for the valve 16 which is a continuation of the piston 17 Toprevent any liquid from passing through valve when closed, it is fittedwith the leather disk 35, held in place by the washer 34, and nut 33;and for preventing liquid from passing around piston 17,

Specification of Letters Patent.

Application filed April 17. 1912.

Patented Mar. 3. 1914.

Serial No. 691,289.

the leather disk 36 is held inplace by the washer 37 and screw 38. Thereduced portion 16 of the piston 17 which forms the valve, is to allowfor a free passage of the of the body 10, said casing housing the rod18, spring 30, etc. The sleeve 22 which is the stem of the hand Wheel26, is adjustably supported byscrewing into the upper end of the casing21. The sleeve 22 forming a space for the freeworking of the rod 18.Attached to the rod 18 by pin 32, or other means so as to move with it,is plate 24, which is the seat for the lower end of the coil spring 30.The upper end of the spring 30 rests against the plate 25 which issimilar to the plate 24, but loose from the rod 18, and is held in placeagainst the end of the sleeve 22, by the'spring 30.

The spring 30 exerts a pressure on the seat 24 attached to the rod 18,thus forcing the piston 17 downwardly in the cylinder 14. The amount ofpressure with which the. said piston is forced downward, is regulatedby' turning the hand wheel 26 thus causing more or less compression inthe spring.

On the lower end of the body 10 and forming the end of the cylinder 14is screwed the cap 28 with the threaded pipe connection 27 forconnection to the chamber of the spray pump.

The operation of the apparatus is as follows: Normally the tension inthe spring 30 holds the piston 17 to the lower end of the cylinder 14,thus leaving the valve open.

When the spray pump 6 is started, the liq-I the valve 16 thus thesupplyof fluid is imfluid regulation at all times, when the operpumpwill also effect a saving of fuel and is forced into the lower end ofcylinder 14, such liquid forcing the piston 17 upwardly into thecylinder 14 against the pressure 6X. erted by the spring 30; thustending to close the valve 16 and cut down the amount of spray liquidallowed to flow from the supply tank 4 through the valve 16 to the spraypump 6. The greater the pressure of the spray liquidfrom' the pump 6 thenearer closed the valve 16 will be. lVhen the spraying nozzle 9 is cutofl", by closing the valve 9 more liquid is conducted to the lower partof the cylinder 14, due to the immediate slight increase in pressure ofthe spraying liquid. The incoming liquid contacts with the piston 17forcing the same upward against the action of spring 30 and closingmdiately cut off when the nozzle 9 is cut 0 Attention is called tothefact that the tension of the spring 30 can be regulated through themedium of the sleeve 22 which is operated by the hand wheel '26, so thatany desired pressure may be maintained.

The manyadvantagcs of a device of this character will be clearlyapparentas it Will be noted that the same provides an effective ator of thespray pump 6 is using the spray lg uid through the nozzle 9. It is alsoan e ective fluid cut off when the spraying nozzle 9 is out OK and actsas a safety valve for they spray pump 6 at all times. The cutting o ofthe spray liquid from the unnecessary wear on the engine and pump byallowing them to run free. .It will also be seen that the structure issuch as may 1 be easily and economically manufacturedl and the variousparts readily assembled, and i 'that the device may be applied tospraying 1 inlet port being connected with said source of supply and theoutlet port being connected with said pump, whereby the latter isarranged to draw liquid through saidpaslsage from said source of supply;a valve mounted in said valve-casing and arranged to control saidpassage; a spring which normally presses upon said valve and tends tohold the same against closing said pasjsage; means which connect saidpump-chamber with said valve-casing on the side of said valve which liesaway from said passage and spring, whereby the pressure in saidpump-chamber acts to press said valve toward said passage and spring; a

spraying device which is connected with said pump-chamber; and means forshutting ofi' communication between said pumpchamber and said sprayingdevice, said valve being arranged to close said passage against thetension of said spring under the influence of theincrease of pressureinduced in said pump-chamber by shutting ofi said spraying device andthereby to shut ofi' the supply of liquid from said source thereof, whenthe spraying device is cut off.

In testimony that I claim the foregoingas my own, I have hereto afiixedmy signature in the presence oftwo witnesses.

CAR-L REICHERT.

Vitnesses i h GEO. T. BAKER, J. A. LOUDON.

